China has reported its second death of A/H1N1 influenza on Friday, according to a Health Ministry statement on its website.

A 43-year-old woman, in Xining, capital of northwest China's Qinghai Province, died of A/H1N1 influenza at about 2:41 p.m. Friday at the provincial contagious disease hospital, local health authorities said.

She was hospitalized on Tuesday for fever, coughing and sore throat, and became a confirmed case on Thursday, said Ma Rucun, director of the hospital.

Qinghai had reported 791 cases of A/H1N1 influenza as of Friday afternoon, 669 patients have recovered.

The average altitude of Qinghai Province is above 3,000 meters. Due to high altitude and low oxygen level, the treatment of A/H1N1 patients is more difficult than that in other regions as the patients on the tableland are easy to have complications, experts said.

China reported its first death of A/H1N1 influenza after an 18-year-old Tibetan woman died on Oct. 4.

The Chinese mainland had reported 26,348 confirmed cases of A/H1N1 influenza as of Friday, 22,746 of which had recovered and 23 cases with heavy symptoms, 10 of which had recovered, the notice said.